PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.10Ratchet Attachment,socket Wrench

The American Society of Mechanical Engineers · NSN 5120-01-334-9859 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-334-9859 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-334-9859. Primary manufacturer part number: B107.10.
Features
  • Ratchet Attachment,socket Wrench — FSC 5120
  • Drive End Shape: SQUARE FIRST END INTERNAL
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Style Designator: EXTERNAL-INTERNAL
  • Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE
  • Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Surface Treatment: CHROMIUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Ratchet Attachment,socket Wrench, cataloged under National Stock Number 5120-01-334-9859, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-334-9859
Primary Part NumberB107.10
Item NameRatchet Attachment,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Drive End ShapeSQUARE FIRST END INTERNAL
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SECOND END EXTERNAL
Style DesignatorEXTERNAL-INTERNAL
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS AND B STYLE
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Outside Diameter1.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5120-00-227-8129 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7322 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7323 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-277-1207 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-334-9872 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-335-1081S77A INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-335-1082 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-335-1086 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-350-1015TMR860 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-355-1900L672B INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
B107.10 The American Society of Mechanical Engineers (USA)
B107.110 CAT 10 TY2CL3STB General Services Administration Federal Supply Service (USA)
B107.10 TY2CL3STB General Services Administration Federal Supply Service (USA)
FRS70A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.110 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-227-8129INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7322INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7323INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-277-1207INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-334-9872INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-335-1081INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
S77A
5120-01-335-1082INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-335-1086INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-350-1015INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
TMR860
5120-01-355-1900INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
L672B
5120-01-399-9668INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
J5447

Frequently Asked Questions

What is NSN 5120-01-334-9859?

NSN 5120-01-334-9859 is a Ratchet Attachment,socket Wrench, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-334-9859?

NSN 5120-01-334-9859 has 5 cross-referenced part numbers: B107.10 (The American Society of Mechanical Engineers), B107.110 CAT 10 TY2CL3STB (General Services Administration Federal Supply Service), B107.10 TY2CL3STB (General Services Administration Federal Supply Service), FRS70A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.110 (The American Society of Mechanical Engineers).

What NSN replaces 5120-01-334-9859?

There are 11 known substitutes for 5120-01-334-9859: 5120-00-227-8129, 5120-00-243-7322, 5120-00-243-7323 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.10?

Key specifications for B107.10: Drive End Shape: SQUARE FIRST END INTERNAL; Material: STEEL OVERALL; Drive End Shape: SQUARE SECOND END EXTERNAL; Style Designator: EXTERNAL-INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-334-9859 still in active supply?

NSN 5120-01-334-9859 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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